Radar signal for use in mobile communication equipment

A method performed by a controlling node of a wireless communications system, the method for operating a radar function performed by a wireless communications device in the wireless communications system, the method comprising:

• receiving required radio frequency (RF) properties extracted for a first radar signal to be transmitted by the wireless communications device, wherein the radar function is one of a plurality of radar functions supported by the wireless communications device, each having a respective one of a plurality of different required RF properties;
• selecting a radar signal transmission configuration from a plurality of different radar signal transmission configurations;
• and
• communicating the required RF properties indicating the selected radar signal transmission configuration to the wireless communications device,
• each of the plurality of different radar signal transmission configurations defining a transmission power level and time and frequency resources associated with a predefined signal of the wireless communications system, and
• the selecting the radar signal transmission configuration is-based on one or more of:
• a frequency bandwidth required by the indicated required RF properties of the first radar signal to be transmitted by the wireless communications device;
• an extent to which transmission of the first radar signal by the wireless communications device will interfere with receiver operations of one or more other wireless devices;
• whether the wireless communications device is to concurrently transmit a second radar signal along with the radar signal;
• whether a radar mode indicated by the received information is permitted to be performed at a current location of the wireless communications device.

A non-transitory computer readable storage medium comprising instructions that, when executed by at least one processor of a wireless communications device that operates in a wireless communications system, causes the at least one processor to carry out a method of performing a radar function of the wireless communications device, the method comprising:

• obtaining required radio frequency (RF) properties of a radar signal to be used for the radar function, by extracting the required RF properties;
• communicating the required RF properties of the radar signal to a controlling node of the wireless communications system;
• receiving, from the controlling node of the wireless communications system, configuration information defining a transmission power level and time and frequency resources associated with the radar signal;
• configuring a transceiver of the wireless communications device to transmit a predefined signal of the wireless communications system using time and frequency resources associated with the predefined signal of the wireless communications system and that satisfy the required RF properties of the radar signal;
• and
• transmitting, by the configured transceiver, the predefined signal of the wireless communications system as the radar signal.

A non-transitory computer readable storage medium comprising instructions that, when executed by at least one processor of a controlling node of a wireless communications system, causes the at least one processor to carry out a method of operating a radar function in a wireless communications device in the wireless communications system, the method comprising:

• receiving required radio frequency (RF) properties extracted for a first radar signal to be transmitted by the wireless communications device, wherein the radar function is one of a plurality of radar functions supported by the wireless communications device, each having a respective one of a plurality of different required RF properties;
• selecting a radar signal transmission configuration from a plurality of different radar signal transmission configurations;
• and
• communicating the required RF properties indicating the selected radar signal transmission configuration to the wireless communications device,
• each of the plurality of different radar signal transmission configurations defining a transmission power level and time and frequency resources associated with a predefined signal of the wireless communications system, and
• the selecting the radar signal transmission configuration is-based on one or more of:
• a frequency bandwidth required by the indicated required RF properties of the first radar signal to be transmitted by the wireless communications device;
• an extent to which transmission of the first radar signal by the wireless communications device will interfere with receiver operations of one or more other wireless devices;
• whether the wireless communications device is to concurrently transmit a second radar signal along with the radar signal;
• whether a radar mode indicated by the received information is permitted to be performed at a current location of the wireless communications device.

A wireless communications device configured to operate in a wireless communications system, and further configured to perform a radar function, the wireless communications device comprising:

• circuitry configured to obtain required radio frequency (RF) properties of a radar signal to be used for the radar function, by extracting the required RF properties;
• circuitry configured to communicate the required RF properties of the radar signal to a controlling node of the wireless communications system;
• circuitry configured to receive, from the controlling node of the wireless communications system, configuration information comprising a transmission power level and time and frequency resources to be used for transmitting the radar signal;
• circuitry configured to configure a transceiver of the wireless communications device to transmit a predefined signal of the wireless communications system using time and frequency resources associated with the predefined signal of the wireless communications system and that satisfy the required RF properties of the radar signal;
• and
• circuitry configured to transmit, by the configured transceiver, the predefined signal of the wireless communications system as the radar signal.

A controlling node of a wireless communications system, the controlling node configured to support a radar function performed by a wireless communications device in the wireless communications system, the controlling node comprising:

• circuitry configured to receive required radio frequency (RF) properties extracted for a first radar signal to be transmitted by the wireless communications device, wherein the radar function is one of a plurality of radar functions supported by the wireless communications device, each having a respective one of a plurality of different required RF properties;
• circuitry configured to select a radar signal transmission configuration from a plurality of different radar signal transmission configurations;
• and
• circuitry configured to communicate the required RF properties indicating the selected radar signal transmission configuration to the wireless communications device,
• each of the plurality of different radar signal transmission configurations defining a transmission power level and time and frequency resources associated with a predefined signal of the wireless communications system, and
• the circuitry configured to select the radar signal transmission configuration is configured to make a signal transmission configuration selection based on one or more of:
• a frequency bandwidth required by the indicated required RF properties of the first radar signal to be transmitted by the wireless communications device;
• an extent to which transmission of the first radar signal by the wireless communications device will interfere with receiver operations of one or more other wireless devices;
• whether the wireless communications device is to concurrently transmit a second radar signal along with the radar signal;
• whether a radar mode indicated by the received information is permitted to be performed at a current location of the wireless communications device.